JP5978201B2 - 磁気記録用磁性粉、磁気記録媒体、および磁気記録用磁性粉の製造方法 - Google Patents

磁気記録用磁性粉、磁気記録媒体、および磁気記録用磁性粉の製造方法 Download PDF

Info

Publication number
JP5978201B2
JP5978201B2 JP2013272726A JP2013272726A JP5978201B2 JP 5978201 B2 JP5978201 B2 JP 5978201B2 JP 2013272726 A JP2013272726 A JP 2013272726A JP 2013272726 A JP2013272726 A JP 2013272726A JP 5978201 B2 JP5978201 B2 JP 5978201B2
Authority
JP
Japan
Prior art keywords
magnetic
magnetic recording
magnetic powder
powder
hexagonal ferrite
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
JP2013272726A
Other languages
English (en)
Japanese (ja)
Other versions
JP2015127985A (ja
JP2015127985A5 (enrdf_load_stackoverflow
Inventor
白田　雅史
雅史 白田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujifilm Corp
Original Assignee
Fujifilm Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fujifilm Corp filed Critical Fujifilm Corp
Priority to JP2013272726A priority Critical patent/JP5978201B2/ja
Priority to US14/584,568 priority patent/US9589584B2/en
Publication of JP2015127985A publication Critical patent/JP2015127985A/ja
Publication of JP2015127985A5 publication Critical patent/JP2015127985A5/ja
Application granted granted Critical
Publication of JP5978201B2 publication Critical patent/JP5978201B2/ja
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/62—Record carriers characterised by the selection of the material
    • G11B5/68—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent
    • G11B5/70—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer
    • G11B5/706—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the composition of the magnetic material
    • G11B5/70626—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the composition of the magnetic material containing non-metallic substances
    • G11B5/70642—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the composition of the magnetic material containing non-metallic substances iron oxides
    • G11B5/70678—Ferrites
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G49/00—Compounds of iron
    • C01G49/0018—Mixed oxides or hydroxides
    • C01G49/0036—Mixed oxides or hydroxides containing one alkaline earth metal, magnesium or lead
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
    • H01F1/032—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials
    • H01F1/10—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials non-metallic substances, e.g. ferrites, e.g. [(Ba,Sr)O(Fe2O3)6] ferrites with hexagonal structure
    • H01F1/11—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials non-metallic substances, e.g. ferrites, e.g. [(Ba,Sr)O(Fe2O3)6] ferrites with hexagonal structure in the form of particles
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2002/00—Crystal-structural characteristics
    • C01P2002/50—Solid solutions
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2002/00—Crystal-structural characteristics
    • C01P2002/50—Solid solutions
    • C01P2002/52—Solid solutions containing elements as dopants
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2002/00—Crystal-structural characteristics
    • C01P2002/50—Solid solutions
    • C01P2002/52—Solid solutions containing elements as dopants
    • C01P2002/54—Solid solutions containing elements as dopants one element only
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2002/00—Crystal-structural characteristics
    • C01P2002/70—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data
    • C01P2002/72—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data by d-values or two theta-values, e.g. as X-ray diagram
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/60—Particles characterised by their size
    • C01P2004/64—Nanometer sized, i.e. from 1-100 nanometer
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/80—Particles consisting of a mixture of two or more inorganic phases
    • C01P2004/82—Particles consisting of a mixture of two or more inorganic phases two phases having the same anion, e.g. both oxidic phases
    • C01P2004/84—Particles consisting of a mixture of two or more inorganic phases two phases having the same anion, e.g. both oxidic phases one phase coated with the other
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/42—Magnetic properties
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
    • H01F1/032—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials
    • H01F1/10—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials non-metallic substances, e.g. ferrites, e.g. [(Ba,Sr)O(Fe2O3)6] ferrites with hexagonal structure
    • H01F1/11—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials non-metallic substances, e.g. ferrites, e.g. [(Ba,Sr)O(Fe2O3)6] ferrites with hexagonal structure in the form of particles
    • H01F1/113—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials non-metallic substances, e.g. ferrites, e.g. [(Ba,Sr)O(Fe2O3)6] ferrites with hexagonal structure in the form of particles in a bonding agent
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2982—Particulate matter [e.g., sphere, flake, etc.]

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • Magnetic Record Carriers (AREA)
  • Hard Magnetic Materials (AREA)
  • Compounds Of Iron (AREA)
  • Manufacturing Of Magnetic Record Carriers (AREA)
JP2013272726A 2013-12-27 2013-12-27 磁気記録用磁性粉、磁気記録媒体、および磁気記録用磁性粉の製造方法 Active JP5978201B2 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2013272726A JP5978201B2 (ja) 2013-12-27 2013-12-27 磁気記録用磁性粉、磁気記録媒体、および磁気記録用磁性粉の製造方法
US14/584,568 US9589584B2 (en) 2013-12-27 2014-12-29 Magnetic powder for magnetic recording, magnetic recording medium, and method of manufacturing magnetic powder for magnetic recording

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2013272726A JP5978201B2 (ja) 2013-12-27 2013-12-27 磁気記録用磁性粉、磁気記録媒体、および磁気記録用磁性粉の製造方法

Publications (3)

Publication Number Publication Date
JP2015127985A JP2015127985A (ja) 2015-07-09
JP2015127985A5 JP2015127985A5 (enrdf_load_stackoverflow) 2015-08-27
JP5978201B2 true JP5978201B2 (ja) 2016-08-24

Family

ID=53482526

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2013272726A Active JP5978201B2 (ja) 2013-12-27 2013-12-27 磁気記録用磁性粉、磁気記録媒体、および磁気記録用磁性粉の製造方法

Country Status (2)

Country Link
US (1) US9589584B2 (enrdf_load_stackoverflow)
JP (1) JP5978201B2 (enrdf_load_stackoverflow)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6556087B2 (ja) * 2016-03-31 2019-08-07 富士フイルム株式会社 六方晶フェライト粉末、磁気記録媒体および六方晶フェライト粉末の製造方法
EP3604227A4 (en) * 2017-03-31 2021-01-13 Powdertech Co., Ltd. FERRITE POWDER, RESIN COMPOSITION AND MOLDED OBJECT
CN107151136A (zh) * 2017-05-17 2017-09-12 马鞍山起劲磁塑科技有限公司 一种高品质注塑用锶铁氧体磁粉的制备方法
EP3528252A1 (en) 2018-02-20 2019-08-21 Fujifilm Corporation Magnetic tape cartridge
US11488627B2 (en) 2018-03-20 2022-11-01 Fujifilm Corporation Ferromagnetic powder for magnetic recording and magnetic recording medium
JP6872572B2 (ja) * 2018-03-20 2021-05-19 富士フイルム株式会社 磁気記録用強磁性粉末および磁気記録媒体
CN112640008B (zh) * 2018-08-28 2023-11-28 富士胶片株式会社 磁铅石型六方晶铁氧体的粉体及其制造方法及电波吸收体
WO2020044649A1 (ja) 2018-08-28 2020-03-05 富士フイルム株式会社 マグネトプランバイト型六方晶フェライトの粉体の製造方法及び電波吸収体の製造方法
JP6893952B2 (ja) * 2018-09-14 2021-06-23 富士フイルム株式会社 磁気記録媒体および磁気記録再生装置
US11514940B2 (en) 2018-09-14 2022-11-29 Fujifilm Corporation Magnetic recording medium and magnetic recording and reproducing device
JP7077241B2 (ja) * 2019-01-11 2022-05-30 富士フイルム株式会社 六方晶ストロンチウムフェライト粉末、磁気記録媒体および磁気記録再生装置
JP7105202B2 (ja) * 2019-01-16 2022-07-22 富士フイルム株式会社 マイクロ波アシスト記録用磁気記録媒体、磁気記録装置、および磁気記録媒体の製造方法
JP7163479B2 (ja) 2019-03-13 2022-10-31 富士フイルム株式会社 記録装置、読取装置、記録方法、記録プログラム、読取方法、読取プログラム、および磁気テープ
JP7154380B2 (ja) 2019-03-13 2022-10-17 富士フイルム株式会社 記録装置、読取装置、記録方法、記録プログラム、読取方法、読取プログラム、および磁気テープ
JP7303871B2 (ja) 2019-05-14 2023-07-05 富士フイルム株式会社 電波吸収体
EP3971921A4 (en) 2019-05-14 2022-08-03 FUJIFILM Corporation Radio wave absorber and compound
EP3972402B1 (en) 2019-05-14 2025-04-09 FUJIFILM Corporation Radio wave absorber
JP7273953B2 (ja) 2019-05-14 2023-05-15 富士フイルム株式会社 電波吸収体
CN110526703A (zh) * 2019-10-17 2019-12-03 哈尔滨理工大学 一种阳离子联合取代的m型锶铁氧体磁性材料及其制备方法
US12187459B2 (en) * 2019-11-05 2025-01-07 Institute For Q-Shu Pioneers Of Space, Inc. Spacecraft
JP7247128B2 (ja) 2020-01-31 2023-03-28 富士フイルム株式会社 磁気テープ、磁気テープカートリッジおよび磁気テープ装置
WO2024162177A1 (ja) * 2023-01-31 2024-08-08 ソニーグループ株式会社 六方晶フェライト磁性粉および磁気記録媒体

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH069167B2 (ja) * 1985-06-03 1994-02-02 ソニー株式会社 六方晶系フエライト粒子粉末の製造方法
JPH0688795B2 (ja) * 1986-04-11 1994-11-09 石原産業株式会社 磁気記録用強磁性微粉末の製造方法
JP2779935B2 (ja) * 1987-07-22 1998-07-23 戸田工業 株式会社 磁気カード用マグネトプランバイト型フェライト粒子粉末及びその製造法
JP2777044B2 (ja) * 1993-04-19 1998-07-16 日産化学工業株式会社 バリウムフェライト微粒子の製造方法
JP3628354B2 (ja) * 1994-08-02 2005-03-09 株式会社東北テクノアーチ バリウムフェライト微粒子の製造方法
JP2003197413A (ja) * 2001-12-21 2003-07-11 Fuji Photo Film Co Ltd 六方晶系フェライトの製造方法及びそれを用いた磁気記録媒体
JP4644535B2 (ja) * 2004-06-21 2011-03-02 富士フイルム株式会社 六方晶フェライト磁性粉末の製造方法および磁気記録媒体の製造方法
JP5645865B2 (ja) 2012-03-30 2014-12-24 富士フイルム株式会社 六方晶ストロンチウムフェライト磁性粉末およびその製造方法、ならびに磁気記録媒体およびその製造方法

Also Published As

Publication number Publication date
JP2015127985A (ja) 2015-07-09
US9589584B2 (en) 2017-03-07
US20150187380A1 (en) 2015-07-02

Similar Documents

Publication Publication Date Title
JP5978201B2 (ja) 磁気記録用磁性粉、磁気記録媒体、および磁気記録用磁性粉の製造方法
JP5916952B2 (ja) 磁気記録用六方晶フェライト磁性粉、六方晶フェライト磁性粒子の製造方法、および磁気記録媒体
JP6517166B2 (ja) 六方晶フェライト粉末および磁気記録媒体
JP6280922B2 (ja) 六方晶フェライト粒子の製造方法および磁気記録媒体の製造方法
JP5319561B2 (ja) 磁気記録媒体
JP6433394B2 (ja) 磁気記録媒体
JP5998185B2 (ja) 強磁性六方晶フェライト粉末および磁気記録媒体
JP5972255B2 (ja) 六方晶フェライト粉末の製造方法および磁気記録媒体の製造方法
JP2011225417A (ja) 六方晶フェライト磁性粒子およびその製造方法、磁気記録媒体用磁性粉、ならびに磁気記録媒体
JP6046189B2 (ja) 六方晶フェライト粉末および磁気記録媒体
JP5978200B2 (ja) 磁気記録用磁性粉、磁気記録媒体、および磁気記録用磁性粉の製造方法
JP6556087B2 (ja) 六方晶フェライト粉末、磁気記録媒体および六方晶フェライト粉末の製造方法
JP5998170B2 (ja) 六方晶フェライト粉末の製造方法および磁気記録媒体の製造方法
JP2015010018A (ja) 金属酸化物粒子の製造方法、金属酸化物粉末および磁気記録媒体
JP5972421B2 (ja) 六方晶フェライト粉末の製造方法および磁気記録媒体の製造方法

Legal Events

Date Code Title Description
A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20150708

A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20150708

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20151007

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20151124

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20160628

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20160725

R150 Certificate of patent or registration of utility model

Ref document number: 5978201

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250